code: def test_build_split_idx_to_origin_idx():
      splits = [
          [(1, False, 2, False), (2, True, 3, True)],
          [(5, False, 6, True)],
      ]
      res = build_split_idx_to_origin_idx(splits)
  
      assert res == {0: (0, 0), 1: (0, 1), 2: (1, 0)}
  
      splits = [
          [(5, False, 6, True)],
          [(1, False, 2, False), (2, True, 3, True)],
      ]
      res = build_split_idx_to_origin_idx(splits, increase=False)
  
      assert res == {0: (1, 0), 1: (1, 1), 2: (0, 0)}
  
imports: import operator
  from collections import OrderedDict
  from numbers import Integral
  from typing import List, Dict
  import numpy
  import pandas
  import pytest
  from ...config import option_context
  from ...core import tile
  from ...utils import Timer
  from ..core import IndexValue
  from ..initializer import DataFrame, Series, Index
  from ..utils import decide_dataframe_chunk_sizes, decide_series_chunk_size, split_monotonic_index_min_max, build_split_idx_to_origin_idx, parse_index, filter_index_value, infer_dtypes, infer_index_value, validate_axis, fetch_corner_data, make_dtypes, build_concatenated_rows_frame, merge_index_value, auto_merge_chunks, whether_to_clean_up
label_desc: Use image node_id 5 for calling a global function with example usage: test_build_split_idx_to_origin_idx() without return types